'Pacific Rim' Trailer: How 'Man and Machine Become One'

Continuing its trend of offering a slew of impressive CGI set pieces, the latest trailer for "Pacific Rim," Guillermo Del Toro's epic monsters vs. robots showdown flick, hit the web Thursday with an even closer look at those creatures and their increasingly complex battles.

"In order to fight monsters, we created monsters of our own," star Charlie Hunnam explains about humans' decision to build giant robot warriors to take on the massive, water-dwelling creatures. Like the teaser, Hunnam offers a quick voiceover explanation as to how the robots work: they're operated by two humans who use their minds and memories to control them, so that "man and machine become one."

Also like the teaser, there's plenty of action in the clip, including more detailed looks at the aliens -- one resembles a pterodactyl -- and additional shots of alien-on-robot action, clashing in the water and mid-air.

Based on what we've seen so far, this is going to be a big, loud, explosive movie, and with Del Toro's pedigree behind it, it should be smart and fun, too.